Once again, I gather I’m rather late in discovering this, but if you haven’t seen it before, I think you’ll like this:

The Colour-Changing Card Trick, Presented by Richard Wiseman.

If, like me, you’re new to it, you’ll probably do what I did, which was to want to show someone else… which is why I’m posting it here.

Apologies for not embedding it – the Youtube version wouldn’t let me, for some reason.